Vehicle-brake.



G. H. BROWN.

VEHICLE BRAKE.

APPLICATION FILED APR.18.1913.

...tijd

'VEHICLE-BRAKE.

Specltlcation of Letters Patent.

Patented Nev. 1914.

Application illed April 18, 1913. Serial No. 761,874..

`movements of the vehicle to which it is attached.

A further object is to provide a brake which can be operated to prevent skiddin of the vehicle, and which may be employe in .locking the vehicle against movemen when the latter is not in use.

Another object is to provide a brake which is simple in construction, efficient in operation, and adapted to be readily applied to most vehicles at a nominal e ense.

The invention comprises a bra e-shoe supported on an arm pivoted to and depending from the vehicle frame, a linked support for the lower end of the arm, and means operating on said link support for throwing the brake-shoe in and out of contact with the ground.

The invention further consists of the parts and the construction and combination of' parts as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which- Figure 1 is a view in vertical section and elevation of the rear portion of a vehicle running-gear, showing the invention as applied with the brake in its inoperative position. Fi 2 is a view in section and elevation showing the brake in its operative position. Fig. 3 is a rear end view of same.

In the drawings A represents the vehicle frame, B and B indicate the rear and front axles with wheels C and C thereon; the frame A being` here shown as connected to the axles B and B by means of springs D.

The essence of this invention resi es in a pair of spaced arms 2, pivoted at 3 to the frame A and depending downward therefrom at an`incline;.the arms 2 extending `rearwardly and terminating beneath the rear axle BJ Detachably mounted on the under side of the outer ends of the arms 2 are shoes 4, which are secured to the arms 2 by means of bolts 5; transverse ribs 6 on the shoes 4 engaging corresponding grooves on the arms 2 to relieve the bolts 5 of shearing strain. Pivotally connected to the arms 2 adjacent the shoes 4, as indicated at 7, are links 8, which extend upwardl1 and are pivoted :it-9 to the lower ends of links 10, which in turn have their upper ends pivcted at 11 to standards 11 rigidly mounted on the axle B. A distance bar 8 connects the links 8, and attached to the bar 8'is a connecting rod 12, the outer end of which is pivotnlly secured to a lever'13, mounted on the frame A, which lever may be operated manually or in any other, suitable manner to reciprocate the connecting rod 12.

The hand-lever 13 is here shown as comprisin the ordinary hand-lever, pivoted at 14, an having a dog 15, which normally engages with a toothed sector 16 to hold the lever 13 and its connections against movement. A grip-lever 17 connects with the dog 15, by the operation of which the latter may be released when it is desired to rock the lever 17. The parts are normally positioned with the slices 4 out of contact with the road surface, as shown vin Fig. 1.

In the operation of the invention when it is desired to throw the brake-shoes 4 into contact with the road surface, to retard the movements of the vehicle, the connecting rod 12 is moved longitudinally in the direction of the arrow a 1n Fig. 1, by means of the hand-lever 13, or in any other suitable manner. This movement of the connecting rod 12 tends to straighten the links 8 and 10, which serve to move the arm 2 in a downward direction, and causes the shoes 4 to contact the road surface. The links 8 and 10 are of such length that when they 11S- sume their straightened or vertical position, as shown in Fig. 2, the rear wheels C will be lifted clear of the ground, so as to throw the weight of the rear portion of the vehicle upon the shoes 4. The rear portion of the vehicle will then drag upon the shoes l in such manner as to overcome the momentum of the vehicle and bring it to a stop. This feature of elevating the rear wheels C to clear the ground is important in powerpropelled vehicles, wherein the power is applied to the rear wheels, as it enables the braking of the vehicle without shutting off the power. This construction is also advantageous where it is desired to lock the vehicle against movement to prevent its being n "is, by mov S enel eel en, @hewn ci dispose lelie wheels C onnrlD lee lnlie linlre ce egeinel; inoy ineen Tliie niey be clone in eny enilielole manner; e @nel lock l@ here elioV es employed for lliis purpose, elle linen o 'which engegee lelie lever lne eec'lo l@ in enen znei'lner lo prevenib lie epernlgion ci formen eoneequenlly prevenire cpereliien el elle links 8 enel lll.

The mei/'ement of elle linke il enrl l0 in ai l'erwercl clireei'gion lirnleel by @ny enimlile slop, here @lion/n projeelzing lenggee 19 on 'lane renr erle B, egnines Wliieli 'elle link l0 abut@ W3 en flie leflver is in lle innermosf position l' cles'neel3 the inner movenienl; el? lelie linlre 8 enrllll mny loe Snell lie elle pivelel conneelion Sl Will more n short (lielence loeyonfl 'lane verfrienl, enel enit oil eline mene Willi pivotal pointe 7 endl ll., 'thereby eleeively locking 'llie linke ngeinei; easy relrecibien.

From llie foregoing il will ne eeen @nel elle lornlre-elioee Ll mey loe reeelily thrown in :incl ourJ el2 connect with the ground by' elle reciprocaition of lne connecting reel 12 lll is obvious lanen Wliile ll 'lieve eliown pair ou? lirele-elieee ee ernployeil' eliie nimeloer new loe increased or' diminished? if elle sireel. l v

in lliie pee,

ll: ie elec obi/ione wel cny menne may be employed for operetsing elle conneel' ing roel l2, whereby elle lorele-elioee lloe llircwn in er @nl conflncl Wisli lie grounil nnelingg lnnlrmelloe ile@ ily 3.695355 leelielole'lliey may lee 'readily replaced when 'Ween An iinperlnnt feature of 'ellis invention is elle@ elrioliling of? ehe vehicle le which il; ie e'llecliedl iney loe readily preventeelu endl wliicli ley reason of opemlging directly en elle reeel enrfece will result in e saving of y labile described my irwenliony wlmi; l e eini and desire lo secure by Le:- eere Pelenl; is:

lln combination with the freine and rear mile of e Vehicle,' standaards secured lo the mile endl projecting npwzirdly end reni'- rvnrolly fuherefroin, upper links `pireledl lo,

.lower enole of inne rode, enel menne lo eculie lower linlrs lso thereby canse elle npper linlre lao engage elle axle.

ln @alimony whereof ll lieve nereiino eelI my liendl in elle presence of zwo subscribing Wrlneeeee.,

ennn'nne n. inneren.

El., Penn 

